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  1. Last 7 days
  2. Dec 2023
    1. Ultra deep geothermal power
      • for:: clean energy source with high energy density -;ultra deep brother power

      • comment

        • a practical, cost-effective, initiator ubiquitous, reliable high energy density substitute for fossil fuels can
          • give us authentic hope and
          • propose complimentary actions that can now make sense like
            • temporary energy diet until the practical solution manifests
  3. Jun 2023
    1. Das neueste Kohlekraftwerk in Bangladesch musste kurz nach seiner Eröffnung bereits zweimal stillgelegt werden, weil Bangladesch nicht über die Devisenreserven verfügte, um die nötige Kohle aus Indonesien zu importieren. Die New York Times stellt ausgehend von diesem Beispiel die zunehmenden wirtschaftlichen Schwierigkeiten wegen der Kosten der Köhleenergie dar. Im Augenblick ist China das einzige größere asiatische Land, das massiv Kohlekraftwerke ausbaut. https://www.nytimes.com/2023/06/18/climate/coal-electricity-bangladesh.html

  4. Sep 2022
  5. Aug 2022
    1. 독일 하노버대학교 생산공학 및 공작기계 연구소(IFW)의 Denkena 교수의 스핀들 열적 최적화와 관련된 논문. 참조를 보면 공작기계 스핀들 해석과 관련된 핵심 논문들이 많이 포함되어 있다.

  6. May 2021
    1. Disclaimer If this tool works, great! However, no guarantees are made that it won't hasten the heat death of the universe through the spontaneous combustion of your CPU.
  7. Aug 2020
  8. Apr 2020
  9. Feb 2019
    1. A.T.E.’s Concentrated Solar Thermal system has provided solutions for commercial and industrial applications. Solar thermal technology is used in it which uses solar energy from the sun. This technology directly impacts costs and increase your savings by being energy-efficient. The system also has many benefits like easy to install, longer life cycle, user friendly etc.

  10. May 2017
    1. thermal degradation of the permafrost

      Thermal degradation is the process of the breaking of molecules due to heating (Zeus). In Arctic regions, thermal degradation can occur to permafrost. This can lead to uneven snowmelt and ground instability (Grandpre). The ground instability affects any infrastructure built on permafrost, including roads, buildings, or piping systems. Uneven melting of the permafrost can create holes or indentations in roadways. A study by the Canadian Journal of Earth Sciences in 2011 showed that heat transfer from groundwater movement can increase the rate of thermal degradation of permafrost. In areas where wildfires are prevalent, thermal degradation of permafrost is an even greater issue (Jafarov). Climate change effects change the patterns and prevalence of forest fires. A study performed for Environmental Research Letters found that under conditions of severe fire in an upland forest where no other climate change effects are present, 18 meters of permafrost can degrade in 120 years. In lowland forests, permafrost is more resilient to thermal degradation and these effects were not found. Wildfires affect permafrost because they burn the organic layer of soil and the rate of permafrost melt is directly impacted by how much of the organic layer is burned. If a thick organic soil layer is present and the fire is short-lived, the permafrost may not melt. Climate change also increases the rate of thermal degradation in permafrost. Temperatures in northern high latitude regions are expected to rise by 2.5 to 7 degrees Celsius. The thermal degradation of permafrost is important not only due to increased carbon emissions in the air and oceans, but also for its negative effects of infrastructure.

      References: Grandpré, Isabelle De, Daniel Fortier, and Eva Stephani. "Degradation of permafrost beneath a road embankment enhanced by heat advected in groundwater." Canadian Journal of Earth Sciences. August 01, 2012. Accessed May 06, 2017. http://cjes.geoscienceworld.org/content/49/8/953.

      Jafarov, E. E., V. E. Romanovsky, H. Genet, A. D. McGuire, and S. S. Marchenko. "The effects of fire on the thermal stability of permafrost in lowland and upland black spruce forests of interior Alaska in a changing climate." Environmental Research Letters 8, no. 3 (August 27, 2013). Accessed May 06, 2017. http://iopscience.iop.org/article/10.1088/1748-9326/8/3/035030/pdf.

      "Thermal Degradation of Plastics." Zeus Industrial Products Inc. 2005. Accessed May 06, 2017.